package html_test
import (
"errors"
"fmt"
"strings"
"testing"
g "go.alanpearce.eu/gomponents"
. "go.alanpearce.eu/gomponents/html"
"go.alanpearce.eu/gomponents/internal/assert"
)
type erroringWriter struct{}
func (w *erroringWriter) Write(p []byte) (n int, err error) {
return 0, errors.New("don't want to write")
}
func TestDoctype(t *testing.T) {
t.Run("returns doctype and children", func(t *testing.T) {
assert.Equal(t, ``, Doctype(g.El("html")))
})
t.Run("errors on write error in Render", func(t *testing.T) {
err := Doctype(g.El("html")).Render(&erroringWriter{})
assert.Error(t, err)
})
}
func TestSimpleElements(t *testing.T) {
tests := []struct {
Name string
Func func(...g.Node) g.Node
}{
{Name: "a", Func: A},
{Name: "abbr", Func: Abbr},
{Name: "address", Func: Address},
{Name: "article", Func: Article},
{Name: "aside", Func: Aside},
{Name: "audio", Func: Audio},
{Name: "b", Func: B},
{Name: "blockquote", Func: BlockQuote},
{Name: "body", Func: Body},
{Name: "button", Func: Button},
{Name: "canvas", Func: Canvas},
{Name: "caption", Func: Caption},
{Name: "cite", Func: Cite},
{Name: "cite", Func: CiteEl},
{Name: "code", Func: Code},
{Name: "colgroup", Func: ColGroup},
{Name: "data", Func: DataEl},
{Name: "datalist", Func: DataList},
{Name: "dd", Func: Dd},
{Name: "del", Func: Del},
{Name: "details", Func: Details},
{Name: "dfn", Func: Dfn},
{Name: "dialog", Func: Dialog},
{Name: "div", Func: Div},
{Name: "dl", Func: Dl},
{Name: "dt", Func: Dt},
{Name: "em", Func: Em},
{Name: "fieldset", Func: FieldSet},
{Name: "figcaption", Func: FigCaption},
{Name: "figure", Func: Figure},
{Name: "footer", Func: Footer},
{Name: "form", Func: Form},
{Name: "form", Func: FormEl},
{Name: "h1", Func: H1},
{Name: "h2", Func: H2},
{Name: "h3", Func: H3},
{Name: "h4", Func: H4},
{Name: "h5", Func: H5},
{Name: "h6", Func: H6},
{Name: "head", Func: Head},
{Name: "header", Func: Header},
{Name: "hgroup", Func: HGroup},
{Name: "html", Func: HTML},
{Name: "i", Func: I},
{Name: "iframe", Func: IFrame},
{Name: "ins", Func: Ins},
{Name: "kbd", Func: Kbd},
{Name: "label", Func: Label},
{Name: "label", Func: LabelEl},
{Name: "legend", Func: Legend},
{Name: "li", Func: Li},
{Name: "main", Func: Main},
{Name: "mark", Func: Mark},
{Name: "menu", Func: Menu},
{Name: "meter", Func: Meter},
{Name: "nav", Func: Nav},
{Name: "noscript", Func: NoScript},
{Name: "object", Func: Object},
{Name: "ol", Func: Ol},
{Name: "optgroup", Func: OptGroup},
{Name: "option", Func: Option},
{Name: "p", Func: P},
{Name: "picture", Func: Picture},
{Name: "pre", Func: Pre},
{Name: "progress", Func: Progress},
{Name: "q", Func: Q},
{Name: "s", Func: S},
{Name: "samp", Func: Samp},
{Name: "script", Func: Script},
{Name: "section", Func: Section},
{Name: "select", Func: Select},
{Name: "slot", Func: SlotEl},
{Name: "small", Func: Small},
{Name: "span", Func: Span},
{Name: "strong", Func: Strong},
{Name: "style", Func: StyleEl},
{Name: "sub", Func: Sub},
{Name: "summary", Func: Summary},
{Name: "sup", Func: Sup},
{Name: "svg", Func: SVG},
{Name: "table", Func: Table},
{Name: "tbody", Func: TBody},
{Name: "td", Func: Td},
{Name: "template", Func: Template},
{Name: "textarea", Func: Textarea},
{Name: "tfoot", Func: TFoot},
{Name: "th", Func: Th},
{Name: "thead", Func: THead},
{Name: "time", Func: Time},
{Name: "title", Func: TitleEl},
{Name: "tr", Func: Tr},
{Name: "u", Func: U},
{Name: "ul", Func: Ul},
{Name: "var", Func: Var},
{Name: "video", Func: Video},
}
for _, test := range tests {
t.Run(test.Name, func(t *testing.T) {
n := test.Func(g.Attr("id", "hat"))
assert.Equal(t, fmt.Sprintf(`<%v id="hat">`, test.Name, test.Name), n)
})
}
}
func TestSimpleVoidKindElements(t *testing.T) {
tests := []struct {
Name string
Func func(...g.Node) g.Node
}{
{Name: "area", Func: Area},
{Name: "base", Func: Base},
{Name: "br", Func: Br},
{Name: "col", Func: Col},
{Name: "embed", Func: Embed},
{Name: "hr", Func: Hr},
{Name: "img", Func: Img},
{Name: "input", Func: Input},
{Name: "link", Func: Link},
{Name: "meta", Func: Meta},
{Name: "param", Func: Param},
{Name: "source", Func: Source},
{Name: "wbr", Func: Wbr},
}
for _, test := range tests {
t.Run(test.Name, func(t *testing.T) {
n := test.Func(g.Attr("id", "hat"))
assert.Equal(t, fmt.Sprintf(`<%v id="hat">`, test.Name), n)
})
}
}
func BenchmarkLargeHTMLDocument(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
elements := make([]g.Node, 0, 10000)
for i := 0; i < 5000; i++ {
elements = append(elements,
Div(Class("foo")),
Span(Class("bar")),
)
}
doc := Div(elements...)
var sb strings.Builder
_ = doc.Render(&sb)
}
}